使用xml+asp.net打造简单的站点导航&管理站点友情链接

效果图如下

存放站点导航信息的xml文档[links.xml]

<?xml version="1.0" encoding="gb2312"?>
<links>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=7</url>
    <title>VB</title>
    <target>_blank</target>
    <name>VB</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=11</url>
    <title>VBScript</title>
    <target>_blank</target>
    <name>VBScript</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=12</url>
    <title>ASP</title>
    <target>_blank</target>
    <name>ASP</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=13</url>
    <title>ASP.NET</title>
    <target>_blank</target>
    <name>ASP.NET</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=5</url>
    <title>C#</title>
    <target>_blank</target>
    <name>C#</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=30</url>
    <title>J#</title>
    <target>_blank</target>
    <name>J#</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=21</url>
    <title>ADO.NET</title>
    <target>_blank</target>
    <name>ADO.NET</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/default.aspx</url>
    <title>返回首页</title>
    <target>_blank</target>
    <name>返回首页</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=20</url>
    <title>ADO</title>
    <target>_blank</target>
    <name>ADO</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=9</url>
    <title>JAVA</title>
    <target>_blank</target>
    <name>JAVA</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=10</url>
    <title>JavaScript</title>
    <target>_self</target>
    <name>JavaScript</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=14</url>
    <title>HTML</title>
    <target>_blank</target>
    <name>HTML</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=15</url>
    <title>XML</title>
    <target>_blank</target>
    <name>XML</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=16</url>
    <title>CSS</title>
    <target>_blank</target>
    <name>CSS</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=3</url>
    <title>C</title>
    <target>_blank</target>
    <name>C</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=4</url>
    <title>C++</title>
    <target>_blank</target>
    <name>C++</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=6</url>
    <title>Delphi</title>
    <target>_blank</target>
    <name>Delphi</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=30</url>
    <title>PHP</title>
    <target>_blank</target>
    <name>PHP</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=5</url>
    <title>.NET</title>
    <target>_blank</target>
    <name>.NET</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/resource/CSDN/CSDN论坛精华.html</url>
    <title>CSDN论坛精华</title>
    <target>_self</target>
    <name>CSDN论坛精华</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=19</url>
    <title>Database</title>
    <target>_blank</target>
    <name>Database</name>
  </link>
  <link>
    <url>javascript:window.external.addFavorite('http://172.17.5.170/web/','Articles')</url>
    <title>加入收藏</title>
    <target>_self</target>
    <name>加入收藏</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Note/default.aspx?function=all</url>
    <title>留言板</title>
    <target>_blank</target>
    <name>留言板</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Download/default.aspx</url>
    <title>下载</title>
    <target>_blank</target>
    <name>下载</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=22</url>
    <title> PowerBuilder</title>
    <target>_self</target>
    <name>PowerBuilder</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/column.htm</url>
    <title>栏目查看</title>
    <target>_blank</target>
    <name>栏目查看</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=24</url>
    <title>Novel</title>
    <target>_blank</target>
    <name>Novel</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/searchArticle.aspx</url>
    <title>文章搜索</title>
    <target>_blank</target>
    <name>文章搜索</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/blog/course.htm</url>
    <title>个人Blog</title>
    <target>_blank</target>
    <name>个人Blog</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/contract.aspx</url>
    <title>联系我们</title>
    <target>_blank</target>
    <name>联系我们</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/default.aspx</url>
    <title>文章系统</title>
    <target>_blank</target>
    <name>文章系统</name>
  </link>
  <link>
    <url>http://172.17.5.170/web/Article/ViewColumn.aspx?Colid=35</url>
    <title>Linux系统</title>
    <target>_blank</target>
    <name>Linux</name>
  </link>
</links>

程序相关源代码[Links.cs] 该类可以用管理站点的友情链接与站点导航

using System;
using System.Data;
using System.Xml;
using Web.Common;

namespace Web
{
    /**//// <summary>
    /// Links 的摘要说明。
    /// </summary>
    public class Links
    {
        /**//// <summary>
        /// xml文档路径
        /// </summary>
        private string fileName;
        /**//// <summary>
        /// 友情链接的url地址
        /// </summary>
        private string url;
        /**//// <summary>
        /// 友情链接的title
        /// </summary>
        private string title;
        /**//// <summary>
        /// 友情链接的target
        /// </summary>
        private string target;
        /**//// <summary>
        /// 友情链接的名称
        /// </summary>
        private string name;
        /**//// <summary>
        /// 页眉站点导航一行显示的超链接数目
        /// </summary>
        private int columns=8;//Web.Common.WebConfig.Columns
        /**//// <summary>
        /// 出错信息,操作反馈信息
        /// </summary>
        private string info;

        /**//// <summary>
        /// 默认构造函数
        /// </summary>
        public Links()
        {
            setFileName("/web/links.xml");
        }

        /**//// <summary>
        /// 指定xml文档路径的构造函数
        /// </summary>
        /// <param name="xmlPath">xml文档路径</param>
        public Links(string xmlPath)
        {
            setFileName(xmlPath);
        }

        /**//// <summary>
        /// xml文档路径,可以提供绝对路径,也可以提供相对路径,URL也可以
        /// </summary>
        public string FileName
        {
            set
            {
                setFileName(value);
            }
            get { return fileName; }
        }

        /**//// <summary>
        /// 友情链接的url地址
        /// </summary>
        public string URL
        {
            set { url=value;  }
            get { return url; }
        }

        /**//// <summary>
        /// 友情链接的title
        /// </summary>
        public string Title
        {
            set { title=value;  }
            get { return title; }
        }

        /**//// <summary>
        /// 友情链接的target
        /// </summary>
        public string Target
        {
            set { target=value;  }
            get { return target; }
        }

        /**//// <summary>
        /// 友情链接的名称
        /// </summary>
        public string Name
        {
            set { name=value;  }
            get { return name; }
        }

        /**//// <summary>
        /// 页眉站点导航一行显示的超链接数目
        /// </summary>
        public int Columns
        {
            set { columns=value;  }
            get { return columns; }
        }

        /**//// <summary>
        /// 属性Info是一个[readonly]属性,表示对象Links进行相关操作
        /// 后,程序给出的相关信息,如:无法完成某项操作,生成的出错信
        /// 息;或者是成功执行了某项操作的提示信息
        /// </summary>
        public string Info
        {
            get
            {
                return info;
            }
        }

        /**//// <summary>
        /// 设置xml文档路径,有可能需要转换
        /// </summary>
        /// <param name="path">文档路径</param>
        private void setFileName(string path)
        {
            if(path!=null&&path!="")
            {
                if(path.IndexOf(":")>0||path.IndexOf("\\")>0)//WinForm
                {
                    fileName=path;
                }
                //WebForm
                else
                {
                    fileName=System.Web.HttpContext.Current.Server.MapPath(path);
                }
            }
        }

        /**//// <summary>
        /// 查询,获取指定友情链接名称的友情链接信息
        /// </summary>
        /// <param name="name">友情链接名称</param>
        /// <returns>操作是否成功,成功则得到该友情链接的信息</returns>
        public bool Query(string name)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);

                XmlNode root=xmlDoc.SelectSingleNode("links");//查找<links>
                XmlElement element=(XmlElement)root.SelectSingleNode("//link[./name='"+Format.FormatXml(name)+"']") ;
                if(element!=null)
                {   
                    url=element.ChildNodes[0].InnerText;
                    title=element.ChildNodes[1].InnerText;
                    target=element.ChildNodes[2].InnerText;
                    this.name=element.ChildNodes[3].InnerText;
                    info="找到名称为'"+name+"'的友情链接!";
                    return true;
                }
                else
                {
                    info="找不到名称为'"+name+"'的友情链接!";
                    return false;
                }
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 添加一个link元素,该友情链接信息由属性设置
        /// </summary>
        /// <returns>操作是否成功</returns>
        public bool Add()
        {
            return add(url,title,target,name);
        }

        /**//// <summary>
        /// 添加一个link元素
        /// </summary>
        /// <param name="url">URL地址</param>
        /// <param name="title">超链接标题</param>
        /// <param name="target">超链接的target</param>
        /// <param name="name">超链接名称</param>
        /// <returns>操作是否成功</returns>
        public bool Add(string url,string title,string target,string name)
        {
            return add(url,title,target,name);
        }

        /**//// <summary>
        /// 添加一个link元素
        /// </summary>
        /// <param name="url">URL地址</param>
        /// <param name="title">超链接标题</param>
        /// <param name="target">超链接的target</param>
        /// <param name="name">超链接名称</param>
        /// <returns>操作是否成功</returns>
        private bool add(string url,string title,string target,string name)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);

                XmlNode root=xmlDoc.SelectSingleNode("links");//查找<links>
                XmlElement addElem=(XmlElement)root.SelectSingleNode("//link[./name='"+Format.FormatXml(name)+"']") ;
                if(addElem!=null)
                {                    
                    info="该元素'"+name+"'已经存在了!";
                    return false;
                }
                else
                {
                    XmlElement xe1=xmlDoc.CreateElement("link");//创建一个<link>节点
                    //xe1.SetAttribute("genre","李赞红");//设置该节点genre属性
                    //xe1.SetAttribute("ISBN","2-3631-4");//设置该节点ISBN属性
 
                    XmlElement urlElement=xmlDoc.CreateElement("url");
                    urlElement.InnerText=url;
                    xe1.AppendChild(urlElement);
                    XmlElement xesub1=xmlDoc.CreateElement("title");
                    xesub1.InnerText=title;//设置文本节点
                    xe1.AppendChild(xesub1);//添加到<link>节点中
                    XmlElement xesub2=xmlDoc.CreateElement("target");
                    xesub2.InnerText=target;
                    xe1.AppendChild(xesub2);
                    XmlElement xesub3=xmlDoc.CreateElement("name");
                    xesub3.InnerText=name;
                    xe1.AppendChild(xesub3);
 
                    root.AppendChild(xe1);//添加到<links>节点中
                    xmlDoc.Save(fileName);
                    info="成功添加友情链接'"+name+"'";
                    return true;
                }
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }
        
        /**//// <summary>
        /// 添加一个link元素
        /// </summary>
        /// <param name="values">元素值集合,依次为[url,title,target,name]</param>
        /// <returns>操作是否成功</returns>
        public bool Add(string[] values)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);
                XmlNode root=xmlDoc.SelectSingleNode("links");//查找<links>
                XmlElement xe1=xmlDoc.CreateElement("link");//创建一个<link>节点
                
                string[] elements={"url","title","target","name"};
                for(int i=0;i<elements.Length;i++)
                {
                    XmlElement element=xmlDoc.CreateElement(elements[i]);
                    element.InnerText=values[i];//设置文本节点
                    xe1.AppendChild(element);//添加到<link>节点中
                }
 
                root.AppendChild(xe1);//添加到<links>节点中
                xmlDoc.Save(fileName);
                info="成功添加友情链接'"+values[0]+"'";
                return true;
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 删除一个指定超链接名称的友情链接元素
        /// </summary>
        /// <param name="name">超链接名称</param>
        /// <returns>操作是否成功</returns>
        public bool remove(string name)
        {
            try
            {
                XmlDocument doc = new XmlDocument(); 
                doc.Load(fileName);  
                XmlNode node=doc.SelectSingleNode("//links");   
                if(node!=null)
                {    
                    node.RemoveChild(node.SelectSingleNode("//link[name='"+Format.FormatXml(name)+"']")); 
                    doc.Save(fileName);
                }
                info="成功删除友情链接'"+name+"'";
                return true;
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 删除一个指定超链接名称的友情链接元素
        /// </summary>
        /// <param name="name">超链接名称</param>
        /// <returns>操作是否成功</returns>
        public bool removeElement(string name)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();   
                xmlDoc.Load(fileName);   
                XmlNode root=xmlDoc.SelectSingleNode("links");
                XmlNodeList xnl=xmlDoc.SelectSingleNode("links").ChildNodes;   
                for(int i=0;i<xnl.Count;i++)
                {
                    XmlElement xe=(XmlElement)xnl.Item(i);   
                    if(((XmlElement)(xe.LastChild)).InnerText==name)   
                    {   
                        root.RemoveChild(xe);
                        break;
                    }   
                }
                xmlDoc.Save(fileName);
                info="成功删除友情链接'"+name+"'";
                return true;
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 更新指定名称的友情链接元素
        /// </summary>
        /// <param name="url">url</param>
        /// <param name="title">title</param>
        /// <param name="target">target</param>
        /// <param name="oldName">超链接原先的值</param>
        /// <param name="newName">新值</param>
        /// <returns>操作是否成功</returns>
        public bool update(string url,string title,string target,string oldName,string newName)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);
                XmlNode root=xmlDoc.SelectSingleNode("links");//查找<links>
                XmlNodeList nodeList=root.ChildNodes;//获取bookstore节点的所有子节点
                bool flag=false;
                foreach(XmlNode xn in nodeList)//遍历所有子节点
                {
                    XmlElement xe=(XmlElement)xn;//将子节点类型转换为XmlElement类型
                    XmlNodeList nls=xe.ChildNodes;//继续获取xe子节点的所有子节点
                    foreach(XmlNode xn1 in nls)//遍历
                    {
                        XmlElement xe2=(XmlElement)xn1;//转换类型
                        if(xe2.Name=="name"&&xe2.InnerText==oldName)//如果找到
                        {
                            flag=true;
                            break;//找到退出来就可以了
                        }
                    }
                    if(flag==true)//Format.FormatXml()Format.FormatXml()Format.FormatXml()
                    {
                        nls.Item(0).InnerText=url;
                        nls.Item(1).InnerText=title;
                        nls.Item(2).InnerText=target;
                        nls.Item(3).InnerText=newName;
                        xmlDoc.Save(fileName);//保存。
                        info="成功更改友情链接'"+oldName+"'";
                        break;
                    }
                }
                if(flag==false)
                {
                    Add(url,title,target,newName);
                }
                return true;
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 更新指定名称的友情链接元素
        /// </summary>
        /// <param name="values">元素值集合</param>
        /// <param name="oldName">超链接名称</param>
        /// <returns>操作是否成功</returns>
        public bool update(string[] values,string oldName)
        {
            try
            {
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);
                XmlNodeList nodeList=xmlDoc.SelectSingleNode("links").ChildNodes;//获取bookstore节点的所有子节点
                bool flag=false;
                foreach(XmlNode xn in nodeList)//遍历所有子节点
                {
                    XmlElement xe=(XmlElement)xn;//将子节点类型转换为XmlElement类型
                    if(((XmlElement)(xe.LastChild)).InnerText==oldName)//如果找到   
                    { 
                        flag=true;
                        break;//找到退出来就可以了
                    }
                    if(flag==true)
                    {
                        XmlNodeList nls=xe.ChildNodes;//继续获取xe子节点的所有子节点
                        for(int i=0;i<values.Length;i++)
                        {
                            nls.Item(i).InnerText=values[i];
                        }
                        xmlDoc.Save(fileName);//保存
                        info="成功更改友情链接'"+oldName+"'";
                        break;
                    }
                }
                if(flag==false)
                {
                    Add(values);
                }
                return true;
            }
            catch(Exception e)
            {
                info=e.Message;
                return false;
            }
        }

        /**//// <summary>
        /// 从xml文档获取友情链接,返回一个DataSet对象
        /// </summary>
        /// <returns>DataSet对象</returns>
        public DataSet GetLinks()
        {
            try
            {
                DataSet ds=new DataSet("links");
                ds.ReadXml(fileName);
                return ds;
            }
            catch(Exception e)
            {
                info=e.Message;
                return null;
            }
        }

        /**//// <summary>
        /// 创建页眉站点导航,一张超链接表格
        /// </summary>
        /// <returns>返回超链接表格的html标记代码[string类型]</returns>
        public string SiteNavigation()
        {
            try
            {
                System.Text.StringBuilder sb=new System.Text.StringBuilder();
                XmlDocument xmlDoc=new XmlDocument();
                xmlDoc.Load(fileName);
                XmlNodeList nodeList=xmlDoc.SelectSingleNode("links").ChildNodes;//获取bookstore节点的所有子节点
                int i=0;
                sb.Append("<TABLE cellSpacing=1 cellPadding=1 width=100% border=0><TR>");
                foreach(XmlNode xn in nodeList)//遍历所有子节点
                {
                    i++;
                    sb.Append("<td><a href="+xn.ChildNodes[0].InnerText);
                    sb.Append(" title="+xn.ChildNodes[1].InnerText);
                    sb.Append(" target="+xn.ChildNodes[2].InnerText);
                    sb.Append(" >"+xn.ChildNodes[3].InnerText+"</a></td>");
                    if(i%columns==0)
                    {
                        sb.Append("</tr><tr>");
                    }
                }
                i=columns-(i%columns);
                if(i!=columns)
                {
                    for(int j=0;j<i;j++)
                    {
                        sb.Append("<td>&nbsp;&nbsp;&nbsp;</td>");
                    }
                }
                sb.Append("</tr></table>");
                return sb.ToString();
            }
            catch(Exception e)
            {
                info=e.Message;
                return "";
            }
        }
    }
}